This is the first day of direct instruction about bonding; students have read applicable chapter in their textbook. First step in discussing bonding is to discuss what is happening on the molecular level with electrons. Beginning with the octet rule and Lewis dot structures will give students tools to check themselves for accuracy when they begin to explore ionic and covalent bonds. The Lewis dot structures help students see how many lone valence electrons each atom has and how many bonds it can therefore form.
Opportunities to Learn:
Depth of Knowledge
Prerequisite Knowledge
Plans for Differentiating Instruction
Accommodations and modifications
Environmental factors
Materials
Periodic Table of elements (located in student planners, textbook, and several posted throughout room)
Worksheet:
Students will be able to draw correct Lewis dot structures
Students will use octet rule to draw correct number of valence electrons
Students will distribute electrons correctly in structures
Students will be able to draw correct Lewis structures for single elements
Students will be able to draw correct Lewis structures for ions
Students will be able to draw correct Lewis structures for molecules
Instruction:
Opening:
Admit Quiz on reading & prior knowledge (written on board)
1. What are the first two electron orbitals named?
2. How many electrons can possibly be in the valence shell?
Engagement:
What does "octet" mean?
Made up of two parts: "oct-" and "-et"
What words do we know with "oct-"? (looking for octagon, octopus, etc)
What do these things have in common (8)
"-et" in this sense is using the second definition, which means a grouping. A common example of this is a "Du-et" What does duet mean? (looking for 2 people, group of 2, etc)
So octet means a grouping of 8
So what group of 8 does the octet rule refer to? (electrons)
- Rhode Island Department of Education
Lesson PlanLesson Title: 8 Is Enough!
State Standards: GLEs/GSEs
National Standards:
Context of Lesson:
This is the first day of direct instruction about bonding; students have read applicable chapter in their textbook. First step in discussing bonding is to discuss what is happening on the molecular level with electrons. Beginning with the octet rule and Lewis dot structures will give students tools to check themselves for accuracy when they begin to explore ionic and covalent bonds. The Lewis dot structures help students see how many lone valence electrons each atom has and how many bonds it can therefore form.Opportunities to Learn:
Depth of Knowledge
Prerequisite Knowledge
Plans for Differentiating Instruction
Accommodations and modifications
Environmental factors
Materials
Periodic Table of elements (located in student planners, textbook, and several posted throughout room)Worksheet:
Objectives:
Instruction:
Opening:
Admit Quiz on reading & prior knowledge (written on board)1. What are the first two electron orbitals named?
2. How many electrons can possibly be in the valence shell?
Engagement:
Closure:
Assessment:
Lewis Dot WorksheetReflections
(only done after lesson is enacted)Student Work Sample 1 – Approaching Proficiency:
Student Work Sample 2 – Proficient:
Student Work Sample 3 – Exceeds Proficiency: